Steam is leaving a pressure cooker whose operating pressure is 20 psia. It is observed that the amount of liquid in the cooker has decreased by 0.6 gal in 45 minutes after the steady operating conditions are established, and the cross-sectional area of the exit opening is 0.15 in2. Determine (a) the mass flow rate of the steam and the exit velocity, (b) the total and flow energies of the steam per unit mass, and (c) the rate at which energy is leaving the cooker by steam.

Q: In a food processing industry, steam and water are mixed to produce a continuous supply of hot…

A: Given data: m1=13 kg/sh1=50 kJ/kgm2=2 kg/sh2=2670 kJ/kgQloss=780 W Need to determine the temperature…

Q: (b) Air enters a 30 cm diameter pipe steadily at 200 kPa and 20°C with velocity of 300 meter in a…

A: According to the information we have a pipe of diameter 30 cm with a velocity of 300 m/min and…

Q: Refrigerant-134a at 700 kPa and 120°C enters an adiabatic nozzle steadily with a velocity of 20 m/s…

A: As per given question P1=700 kpa P2=400kpa T1=120°c T2=30°c We have to determine exit velocity and…

Q: Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 30°C with a…

A: Given Information:For air compressor

Q: Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C with a…

A: Given data: Here fluid being compressed is air.

Q: Steam at 1000 kPa, a temperature of 300°C, and a velocity of 50 m/s. The steam leaves the turbine at…

A:

Q: Nitrogen gas is compressed from 80 kPa and 27°C to 480 kPa by a 10-kW compressor. Determine the mass…

A: Given: The initial pressure of the nitrogen gas in the compressor is P1=80 kPa The final pressure of…

Q: A steam enters the condenser with an enthalpy of 2234 kJ/kg. If the condensed steam leaves t…

A: Given:h1=2234 KJ/Kgh2=321 KJ/KgQ=5000 KW

Q: Water is contained in a closed rigid tank at an initial pressure of 1200 kPa. Heat transfer occurs…

A: Given data: -  The initial pressure is P1 = 1200 kPa. The final pressure is P2 = 7 MPa. The mass of…

Q: Air at 100 kPa and 280°K is compressed steadily to 600 kPa and 400°K. The mass flow rate of the air…

A: Given data,  Potential energy and kinetic energy is neglected.  P1= 100 KPa,  P2= 600 KPa  T1=280 K…

Q: In a power plant, water vapor with a flow rate of 35 kg / s enters the adiabatic turbine at a…

A:

Q: A steam condenser is supplied with steam, which has a specific enthalpy (calculated above 0 C) of…

A: Given, At inlet condition of condenser,h1=2.2MJ/kgv1=70m/smass flow rate, m˙=2200kg/hAt outlet…

Q: Dry saturated steam at100 kPa (1 bar) enters a nozzle steadily with a velocity of 50 m/s. The inlet…

A: We have inlet conditions as follows,Pressure (P1) = 1 barTemperature (T1) = ?Area (A1) =…

Q: Helium is to be compressed from 120 kPa and 310 K to 700 kPa and 430 K. A heat loss of 20 kJ/kg…

A:

Q: The entropy of a cup of hot coffee decreases as it cools. Is this a violation of the increase of…

A: LET US FIRST UNDERSTAND WHAT IS ENTROPY  PRINCIPLE . ENTROPY PRINCIPLE = ENTROPY WILL ALWAYS…

Q: Steam enters a nozzle at 400°C and 700 kPa with a velocity of 10 m/s, and leaves at 320°C and 150…

A:

Q: super heated steam enters an adiabatic gas turbine at 12 bar and 500 °C and leaves at 400 Kpa and…

A: To determine the required values in the above question, we must use two concepts:  1. Continuity…

Q: Air enters an adiabatic nozzle at 750 kPa and 307°C with velocity of 300 m/s. It leaves the nozzle…

A: Given Data  At state 1 P1=750KPa T1=307C C1=300 m/s At state 2 T2=77C A1=2A2

Q: Nitrogen gas is compressed from 80 kPa and 27°C to 480 kPa by a 10-kW compressor. Determine the mass…

A: The mass flow rate can be found from the compressor power and the work of compression as follows:

Q: A rigid, insulated tank that is initially evacuated is connected through a valve to a supply line…

A: Write the properties of helium. Write the expression of the specific volume. Write the expression…

Q: Consider that 1 kg of air has a 21.7 kJ decrease of internal energy while its temperature is reduced…

A:

Q: Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C with a…

A: Given data: Inlet temperature of air, T1 = 250C = 298 K Exit temperature of air, T2 = 3470C = 620 K…

Q: Refrigerant-134a enters a 28 cm diameter pipe steadily at 200 kPa and 20 oC with a velocity of 5…

A:

Q: Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25 °C with a…

A:

Q: Refrigerant R-134a at 500 kPa and 120 digits enters an adiabatic nozzle steadily with a velocity of…

A:

Q: Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C with a…

A:

Q: A 1.8kg/s of steam expands in a turbine producing 550 kW of power output. The steam enters at a…

A: Given : m=1.8 kg/sW=550 kWV1=18 m/sV2=70 m/sz1-z2=900 mmh1-h2=400 kJ/kg

Q: Saturated vapor enters the turbine at 8.0 MPa and exits 0.008 MPa. The turbine has an isentropic…

A:

Q: Steam enters an adiabatic diffuser at 150 kPa and 120°C with a velocity of 550 m/s. Determine the…

A: Assume the area of inlet and outlet are equal. Then we find the entropy for given pressure and…

Q: Air at 90 kPa and 10oC enters an adiabatic diffuser steadily with a velocity of 180 m/s and leaves…

A: Find , Exit temperature. Concept Apply steady flow energy equation between the inlet and outlet.

Q: Air enters a 28-cm diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is…

A: Pipe diameter, d=28 cm=0.28 mAir inlet condition: P1=200 kPa, T1=20oC, V1=5 m/sAir exit condition:…

Q: A water stream at 1 MPa and 160°C is mixed with another stream at 1 MPa and 300°C. If the mass flow…

A: To solve the given question, energy conservation will be applied. The change in enthalpy of the…

Q: Steam enters a turbine steadily at 7 MPa and 600°C with a velocity of 60 m/s and leaves at 25 kPa…

A: Given: Inlet conditions:P1=7 MPaT1=600°CV1=60 m/sA1=150 cm2Exit Conditions:P2=25 kPaQ=-20…

Q: - Carbon dioxide gas enters a pipe with a flow rate of 2.19 kg/s at a pressure of 3.7 MPa and…

A: The ideal gas equation is - PV=mRT3.7×103×V=2.19×8.31444×440Volumetric flow V =0.0492 m3sThe unit of…

Q: Helium is to be compressed from 105 kPa and 295 K to 700 kPa and 460 K. A heat loss of 15 kJ/kg…

A: Given Pi = 105 kPa Ti = 295 K Pf = 700 kPa Tf = 460 K Qab = 15 kJ/Kg m' = 60 Kg/min To find Power…

Q: Nitrogen gas is compressed from 80 kPa and 27°C to 480 kPa by a 10-kW compressor. Determine the mass…

A: Given: The initial pressure of nitrogen gas is P1=80 kPa. The final pressure of nitrogen gas is…

Q: Air enters an adiabatic nozzle at 45 psia and 940Fwith low velocity and exits at 650 ft/s. If the…

A: Write the value of enthalpy at nozzle inlet for air at 45 psia and 940 oF from the table for…

Q: Q2/ Air enters an adiabatic nozzle steadily at 400 kPa, 290°C, and 35 m/s and leaves at 200 kPa and…

A: Given:P1=400 kPaT1=290°Cc1=35 m/sP2=200 kPac2=240 m/sA1=100 cm2R=0.287 KJ/Kg.KCp=1.005 KJ/Kg.K

Q: Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 10 MPa,…

A:

Q: Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 45 m/s and leaves at 100 kPa and 180…

A: a)  The mass flow rate                       m=ρV1=P1A1v1RT1=300×110×10-4×450.287×473=1.09 kgs b)…

Q: Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 4 MPa,…

A: Given Data: The pressure at the inlet is, P1=4 MPa. The temperature at the inlet is, T1=500°C. The…

Q: Refrigerant-134a at 140 kPa and –10°C is compressed by an adiabatic 1.3-kW compressor to an exit…

A: find out the final enthalpy by using R134a table…

Q: Argon gas enters an adiabatic compressor at 14 psia and 75°F with a velocity of 60 ft/s, and it…

A: Given Data⇒P1=14 PsiaP2=200 PsiaT1=75°F Data Assumption⇒ for argon assume γ=1.667

Q: Refrigerant-134a enters a diffuser steadily as saturated vapor at 800 kPa with a velocity of 120…

A: Given data as per question Saturated vapour pressure =800 kpasaturated vapour velocity =120 msLeaves…

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.